To find this design item...
Step 1: After you log in, click on Calendars (brown box below).
The Your Calendars page will open.
Step 2: Choose the calendar you wish to modify (brown box below).
Step 3: Click on Design (brown box below).
Step 4: Scroll down and click on Frame and cells (brown box below).
Step 5: Scroll down until you find the header Frame width.
To change the frame width...
Type in a number before the "px" (brown arrow above).
Enough space? Great.
Too much? Type in a lower number.
Too little? Type in a higher one.
Let's look at some examples.
Here is the frame [blank space] at the default of 15 pixels [turquoise box].
Notice the difference at 60 pixels [orange box + blue arrows].
Here's how it looks with an events list. The first image is the default [15px]. The second is at 60px [blue arrows].
As you can see in the image below, the Frame width header has an additional feature for monthly calendars: Compact view.
In the image below Compact view is toggled off (greyed out). Note the space between the rows and inside the cells themselves.
In the image above, Compact view is toggled on (button is blue in brown box above). Note the reduction of space between the rows and inside the cells themselves...as if everything has been "squished".
Click on Save at the bottom of the column to save your changes.